May weather forecast
Winnetka, CA

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Weather in May

May, the last month of the spring in Winnetka, is a moderately hot month, with an average temperature varying between 54.5°F (12.5°C) and 73.8°F (23.2°C).

Temperature

Winnetka's average high-temperature marks a warm 73.8°F (23.2°C) with the advent of May, closely mirroring that of the preceding month. The temperature lowers to an average of 54.5°F (12.5°C) during May nights.

Humidity

In Winnetka, the average relative humidity in May is 58%.

Rainfall

In Winnetka, in May, during 3.4 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, there are 42.7 rainfall days, and 6.46" (164mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

In May, the average length of the day in Winnetka, California, is 13h and 58min.
On the first day of May in Winnetka, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:00 pm PDT.

Sunshine

The average sunshine in May in Winnetka is 11.5h.

UV index

In May, the average daily maximum UV index in Winnetka is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 5 in May translates into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What are the temperatures in Winnetka in May?

The high-temperature, in May, in Winnetka, is 73.8°F (23.2°C), while the low-temperature averages to 54.5°F (12.5°C).

What is the average humidity in May in Winnetka?

In Winnetka, California, the average relative humidity in May is 58%.

How much does it rain in Winnetka in May?

In Winnetka, California, in May, during 3.4 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow in Winnetka?

January through November are months without snowfall in Winnetka, California.

How many hours of daylight does Winnetka have in May?

The average day length in May is 13h and 58min.

What time are sunrise and sunset in May in Winnetka?

In May, on the first day of the month, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of the month, in Winnetka, California, sunrise is at 5:43 am and sunset at 8:00 pm PDT.

How long on average sun shines in May in Winnetka?

In Winnetka, the average sunshine duration in May is 11.5h.

What is the UV index reading in May in Winnetka?

In May, the average daily maximum UV index in Winnetka is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Winnetka, CA

Average temperature in May - Winnetka, CA
  • Average high temperature in May: 73.8°F

The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (61.9°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

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Average pressure in May
Winnetka, CA

Average pressure in May - Winnetka, CA
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in May
Winnetka, CA

Average wind speed in May - Winnetka, CA
  • Average wind speed in May: 5.5mph

The windiest months (with the highest average wind speed) are January and December (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in May
Winnetka, CA

Average humidity in May - Winnetka, CA
  • Average humidity in May: 58%

The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in May
Winnetka, CA

Average rainfall in May - Winnetka, CA
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is February (1.22").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Winnetka, CA

Average rainfall days in May - Winnetka, CA
  • Average rainfall days in May: 3.4 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.4 days).

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Average snowfall days in May
Winnetka, CA

Average snowfall days in May - Winnetka, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Winnetka, CA

Average daylight in May / Average sunshine in May - Winnetka, CA
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 11h and 3min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

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Average sunshine days in May
Winnetka, CA

Average sunshine days in May - Winnetka, CA
  • Average sunshine days in May: 25.3 days

The months with the most sunshine days are August and October (27.3 days).
The month with the least sunshine days is February (22 days).

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Average UV index in May
Winnetka, CA

Average UV index in May - Winnetka, CA
  • Average UV index in May: 5

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Winnetka, CA

Average cloud cover in May - Winnetka, CA
  • Average cloud cover in May: 14

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in May
Winnetka, CA

Average visibility in May - Winnetka, CA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Winnetka, California, USA

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